The Cancer Centre, University Hospitals Birmingham NHS Foundation Trust, Edgbaston, Birmingham, B15 2TH, UK. Department of Radiology, University Hospitals Birmingham NHS Foundation Trust, Edgbaston, Birmingham, B15 2TH, UK. The Liver Unit, University Hospitals Birmingham NHS Foundation Trust, Edgbaston, Birmingham, B15 2TH, UK. The Cancer Centre, University Hospitals Birmingham NHS Foundation Trust, Edgbaston, Birmingham, B15 2TH, UK. y.t.ma@bham.ac.uk.